Finding the Fourth Proportional to 42,665.88, 64,000.30 and 11,501.88

Step by Step Solution

1. Step 1: Write the proportion equation
   42,665.88 : 64,000.30 = 11,501.88 : x
2. Step 2: Convert to fraction form
   42,665.88/64,000.30 = 11,501.88/x
3. Step 3: Cross multiply
   42,665.88x = 64,000.30 × 11,501.88
4. Step 4: Simplify right side
   42,665.88x = 736,123,770.56
5. Step 5: Solve for x
   x = 736,123,770.56/42,665.88
6. Step 6: Final answer
   x = 17,253.22